A Search for Resonance Decays to Lepton+Jet at HERA and Limits on Leptoquarks

Chekanov, S; Derrick, M; Krakauer, D; Loizides, Jh; Magill, S; Musgrave, B; Repond, J; Yoshida, R; Mattingly, Mck; Antonioli, P; Bari, G; Basile, M; Bellagamba, L; Boscherini, D; Bruni, A; Bruni, G; Romeo, Gc; Cifarelli, L; Cindolo, F; Contin, A; Corradi, M; De Pasquale, S; Giusti, P; Iacobucci, G; Margotti, A; Nania, R; Palmonari, F; Pesci, A; Sartorelli, G; Zichichi, A; Aghuzumtsyan, G; Bartsch, D; Brock, I; Goers, S; Hartmann, H; Hilger, E; Irrgang, P; Jakob, Hp; Kappes, A; Katz, Uf; Kind, O; Meyer, U; Paul, E; Rautenberg, J; Renner, R; Schnurbusch, H; Stifutkin, A; Tandler, J; Voss, Kc; Wang, M; Weber, A; Bailey, Ds; Brook, Nh; Cole, Je; Foster, B; Heath, Gp; Heath, Hf; Robins, S; Rodrigues, E; Scott, J; Tapper, Rj; Wing, M; Capua, M; Mastroberardino, A; Schioppa, M; Susinno, G; Kim, Jy; Kim, Yk; Lee, Jh; Lim, It; Pac, My; Caldwell, A; Helbich, M; Liu, X; Mellado, B; Ning, Y; Paganis, S; Ren, Z; Schmidke, Wb; Sciulli, F; Chwastowski, J; Eskreys, A; Figiel, J; Olkiewicz, K; Stopa, P; Zawiejski, L; Adamczyk, L; Bold, T; Grabowska-Bold, I; Kisielewska, D; Kowal, Am; Kowal, M; Kowalski, T; Przybycien, M; Suszycki, L; Szuba, D; Szuba, J; Kotanski, A; Slominski, W; Adler, V; Bauerdick, Lat; Behrens, U; Bloch, I; Borras, K; Chiochia, V; Dannheim, D; Drews, G; Fourletova, J; Fricke, U; Geiser, A; Goebel, F; Gottlicher, P; Gutsche, O; Haas, T; Hain, W; Hartner, Gf; Hillert, S; Kahle, B; Kotz, U; Kowalski, H; Kramberger, G; Labes, H; Lelas, D; Lohr, B; Mankel, R; Melzer-Pellmann, Ia; Moritz, M; Nguyen, Cn; Notz, D; Petrucci, Mc; Polini, A; Raval, A; Schneekloth, U; Selonke, F; Wessoleck, H; Wolf, G; Youngman, C; Zeuner, W; Schlenstedt, S; Barbagli, G; Gallo, E; Genta, C; Pelfer, Pg; Bamberger, A; Benen, A; Coppola, N; Bell, M; Bussey, Pj; Doyle, At; Glasman, C; Hamilton, J; Hanlon, S; Lee, Sw; Lupi, A; Saxon, Dh; Skillicorn, Io; Gialas, I; Bodmann, B; Carli, T; Holm, U; Klimek, K; Krumnack, N; Lohrmann, E; Milite, M; Salehi, H; Stonjek, S; Wick, K; Ziegler, A; Ziegler, A; Collins-Tooth, C; Foudas, C; Goncalo, R; Long, Kr; Tapper, Ad; Cloth, P; Filges, D; Kuze, M; Nagano, K; Tokushuku, K; Yamada, S; Yamazaki, Y; Barakbaev, An; Boos, Eg; Pokrovskiy, Ns; Zhautykov, Bo; Lim, H; Son, D; Piotrzkowski, K; Barreiro, F; Gonzalez, O; Labarga, L; del Peso, J; Tassi, E; Terron, J; Vazquez, M; Barbi, M; Corriveau, F; Gliga, S; Lainesse, J; Padhi, S; Stairs, Dg; Tsurugai, T; Antonov, A; Danilov, P; Dolgoshein, Ba; Gladkov, D; Sosnovtsev, V; Suchkov, S; Dementiev, Rk; Ermolov, Pf; Golubkov, Ya; Katkov, Ii; Khein, La; Korzhavina, Ia; Kuzmin, Va; Levchenko, Bb; Lukina, Oy; Proskuryakov, As; Shcheglova, Lm; Vlasov, Nn; Zotkin, Sa; Coppola, N; Grijpink, S; Koffeman, E; Kooijman, P; Maddox, E; Pellegrino, A; Schagen, S; Tiecke, H; Velthuis, Jj; Wiggers, L; de Wolf, E; Brummer, N; Bylsma, B; Durkin, Ls; Ling, Ty; Cooper-Sarkar, Am; Cottrell, A; Devenish, Rce; Ferrando, J; Grzelak, G; Patel, S; Sutton, Mr; Walczak, R; Bertolin, A; Brugnera, R; Carlin, R; Dal Corso, F; Dusini, S; Garfagnini, A; Limentani, S; Longhin, A; Parenti, A; Posocco, M; Stanco, L; Turcato, M; Heaphy, Ea; Metlica, F; Oh, By; Whitmore, Jj; Iga, Y; D'Agostini, G; Marini, G; Nigro, A; Cormack, C; Hart, Jc; Mccubbin, Na; Heusch, C; Park, Ih; Pavel, N; Abramowicz, H; Gabareen, A; Kananov, S; Kreisel, A; Levy, A; Abe, T; Fusayasu, T; Kagawa, S; Kohno, T; Tawara, T; Yamashita, T; Hamatsu, R; Hirose, T; Inuzuka, M; Kitamura, S; Matsuzawa, K; Nishimura, T; Arneodo, M; Ferrero, Mi; Monaco, V; Ruspa, M; Sacchi, R; Solano, A; Koop, T; Levman, Gm; Martin, Jf; Mirea, A; Butterworth, Jm; Gwenlan, C; Hall-Wilton, R; Jones, Tw; Lightwood, Ms; West, Bj; Ciborowski, J; Ciesielski, R; Nowak, Rj; Pawlak, Jm; Sztuk, J; Tymieniecka, T; Ukleja, A; Ukleja, J; Zarnecki, Af; Adamus, M; Plucinski, P; Eisenberg, Y; Gladilin, Lk; Hochman, D; Karshon, U; Kcira, D; Lammers, S; Li, L; Reeder, Dd; Savin, Aa; Smith, Wh; Deshpande, A; Dhawan, S; Hughes, Vw; Straub, Pb; Bhadra, S; Catterall, Cd; Fourletov, S; Hartner, G; Menary, S; Soares, M; Standage, J

doi:10.1103/PhysRevD.68.052004

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A search for narrow-width resonances that decay into electron+jet or neutrino+jet has been performed with the ZEUS detector at the DESY ep collider HERA operating at center-of-mass energies of 300 and 318 GeV. An integrated e+p luminosity of 114.8 pb-1 and e-p luminosity of 16.7 pb-1 were used. No evidence for any resonance was found. Limits were derived on the Yukawa coupling λ as a function of the mass of a hypothetical resonance that has arbitrary decay branching ratios into eq or vq. These limits also apply to squarks predicted by R-parity-violating supersymmetry. Limits for the production of leptoquarks described by the Buchmüller-Rückl-Wyler model were also derived for masses up to 400 GeV. For λ = 0.1, leptoquark masses up to 290 GeV are excluded.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11386/1064692

Titolo:	A Search for Resonance Decays to Lepton+Jet at HERA and Limits on Leptoquarks
Autori interni:	DE PASQUALE, Salvatore
Data di pubblicazione:	2003
Rivista:	PHYSICAL REVIEW D
Abstract:	A search for narrow-width resonances that decay into electron+jet or neutrino+jet has been performed with the ZEUS detector at the DESY ep collider HERA operating at center-of-mass energies of 300 and 318 GeV. An integrated e+p luminosity of 114.8 pb-1 and e-p luminosity of 16.7 pb-1 were used. No evidence for any resonance was found. Limits were derived on the Yukawa coupling λ as a function of the mass of a hypothetical resonance that has arbitrary decay branching ratios into eq or vq. These limits also apply to squarks predicted by R-parity-violating supersymmetry. Limits for the production of leptoquarks described by the Buchmüller-Rückl-Wyler model were also derived for masses up to 400 GeV. For λ = 0.1, leptoquark masses up to 290 GeV are excluded.
Handle:	http://hdl.handle.net/11386/1064692
Appare nelle tipologie:	1.1.1 Articolo su rivista con DOI

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